445530330 has 48 divisors (see below), whose sum is σ = 1323863424. Its totient is φ = 101835360.

The previous prime is 445530329. The next prime is 445530331. The reversal of 445530330 is 33035544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (445530329) and next prime (445530331).

It is a junction number, because it is equal to n+sod(n) for n = 445530294 and 445530303.

It is not an unprimeable number, because it can be changed into a prime (445530331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352966 + ... + 354225.

It is an arithmetic number, because the mean of its divisors is an integer number (27580488).

Almost surely, 2^445530330 is an apocalyptic number.

445530330 is an abundant number, since it is smaller than the sum of its proper divisors (878333094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445530330 is a wasteful number, since it uses less digits than its factorization.

445530330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707211 (or 707208 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 445530330 is about 21107.5893933912. The cubic root of 445530330 is about 763.7638372154.

Adding to 445530330 its reverse (33035544), we get a palindrome (478565874).

The spelling of 445530330 in words is "four hundred forty-five million, five hundred thirty thousand, three hundred thirty".